Abstract: The density regulator used for internal emulsion explosives were expanded perlite and chemical blowing agent commonly, but the density of the emulsion explosives with expanded perlite was difficult to control. Because the particle size, strength and oil resistance of the expanded perlite, the detonation performance of emulsion explosives was decreased. The properties of the emulsion explosives with the high-performance hollow glass microspheres were studied especially. The results show that the high-performance hollow glass microspheres can be used as sensitizer and stabilizer for emulsion explosives. The detonation distance, brisance and detonation velocity of the emulsion explosives were improved obviously when the filling quantity is 4%.  

Key words: Hollow glass microspheres, Emulsion explosives, Filling, Detonation performance